r/Seeed_Studio

▲ 2 r/Seeed_Studio+1 crossposts

XIAO ESP32C5 5V pin and USB power supply

I provide 5V power supply to my XIAO ESP32C5 through its 5V pin.

I am wondering what happens when I connect it additionally via USB to a power supply. No problem can happen ? If not which source is privileged.

Thanks.

reddit.com
u/Tutoduino — 2 days ago
▲ 37 r/Seeed_Studio+1 crossposts

Calling all Meshtastic builders: the Build-Off 2026 is now live 🚀

Hey everyone,

We wanted to share something we’re genuinely excited about.

Today we officially launched the Meshtastic Build-Off 2026 — a global hardware challenge for Meshtastic enthusiasts, makers, PCB designers, RF hackers, and open-source hardware builders.

At its core, this challenge is built around something many of us love:

  • Starting from a blank PCB
  • Routing traces late at night
  • Waiting for the first prototype to arrive
  • Flashing firmware for the first time
  • And finally watching your own Meshtastic node come alive

That feeling never gets old.

We wanted this Build-Off to celebrate not only great products, but also the spirit of open-source hardware and the joy of building something truly yours.

The challenge is open to anyone building Meshtastic-based hardware:

  • off-grid communication devices
  • custom dev kits
  • solar-powered repeaters
  • mesh gateways
  • weird experimental boards 🙂
  • or anything else Meshtastic-related

One thing we especially wanted to do differently:

Top projects may actually have the opportunity to become real co-create products with Seeed — including public launch and revenue sharing.

So this isn’t just a “submit and win” type contest.
We genuinely want to help good ideas go further.

Would love to hear feedback from the community and see what people build.

🔗 Click here to check it out!

u/zerolingzhang — 7 days ago